CCR9 and infection: The linked analyses of GATA-3+ cells derived from MLN and siLP of BALB/c mice on day 7 post-infection showed, expectedly, that CCR9 expression was strongly associated with small intestinal homing of GATA-3+ cells, whereas intestinal Th2 cells were not enriched in α4β7+ cells compared to the MLN derived population (Fig. 1F).